Vacuum-sealing key-opening preserving-jar.



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N0. 468|,I3L Patented Aug. 20, |901.

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VACUUM SEALING KEY OPENING PBESERVING-JAR.

(Applenon led Nov. 3, 1900.) (No Model.) I 2 Sheets-Sheet 2.

P/VlESSES i [N VEN TOR. W/ BYMMJYMM je A TTORNE m UNITED STATES PATENT OFFICE.`

EDWIN NORTON, or MAYwOOD, ILLINOIS, AssIGNOE 'ro THE AUTOMATIC vAOUUM OANNINGr COMPANY, or OHIOAGO, ILLINOIS.

VACUUM-SEALING KEY-OPENING PRESERVING-JAR.

SPECIFICATION `forrrlrlg part f Letters Patent NO. 681,131, dated August 20, 1901-.

Application filed November 3, 1900. Serial No. 35,319. (No model.)

To @ZZ whom `t may concer/We.- l Be it known that I, EDWIN NORTON, a citil "zen of the United States, residing in May- "wood, in the county of Cook and State of Illinois, have invented a new anduseful Improvement InVacuum-Sealing Key-Opening Preserving-J ars, of which the following is a l y specification.

My invention relates to improvements in glass or earthernware jars for containing,

hermetically-sealed food and otherproducts.

My invention consists in the combination, with a glass or earthenware jar having an external shoulder on its neck or top, of a sheetmetal sealing-ring having an internal shoulder and hermetically sealed and secured to l I thejar and provided with a key-opening `tongued tearing-strip and a sheet-metal cover hermetically sealed and secured to the sealing-ring.

It further consists in a glass or earthenware jar provided with an external shoulder at itsneck or top, in combination with a sheetmetal sealing-ring provided with an internal shoulder or upright fold resting on the shoulder of the jar, with a packing-ring between and secured to the jar by an inturned iiauge at its lower edge embracing the shoulder on the jar and compressing the packing, said sheet-metal sealing-ring being provided with a tongued tearing-strip above the shoulder on the jar and having also a roll or liange above the tearing-strip and a sheet-metal cover `adapted to be sealed and secured to said sealing-'ring bya vacuum or atmospheric pressure seal and additionally secured thereto by a mechanical lock or seam.

`It further consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown and described, and specied in the claims.

`In the accompanying drawings, forming a part of this specification, I have shown a preserving-jar embodying my invention, and

also the successive steps or stages of its j manufacture and sealing.

In said drawings, Figure 1 shows the blank in the nat from which the sealing-ring is formed; Fig, 2, the sealing-ring formed from the blank; Fig. 3, the sealing-ring at its next stage or step provided with a wide-open internally-projecting bead; Fig. 4:, the sealing-ring l at its next step with the walls of the bead compressed or folded together to form an internal between the external shoulder on the jar and the internal shoulder on the sealingring. Fig. 7 shows the jar provided with the sheetmetal sealing=ring and with its sheet-metal cover resting loosely in place thereon and ready to be sealed. or secured thereto by a vacuum or `atmospheric-pressure seal when the filled jar is placed in the receiver of an airpump, the air exhausted therefrom, and again suddenly restored. Fig. 8 shows the same after the jar has been removed from the receiver and the sheet-1n etal cover additionally locked and secured to the sealing-ring by a mechanical seal or seaming. Fig. 9 shows the jar after it has been opened by winding the tongued tearing-strip of the sealing-ring on a key and the jar ready to be again closed by the slip-cover formed by removing the tearing-strip from the sealing-ring. Fig. 10 is an enlarged elevation, partly in section, of the sealed jar; and Fig. l1 is a partial plan of the glass jar.

In the drawings similarletters of reference indicate like parts throughout all the figures.

In said drawings, A represents a glass or earthenware jar having its neck or top provided with an external shoulder ct to receive a packing-ring a. I

B is the sheet-metal sealing-ring, the same being formed from a narrow rectangular blank B and provided with a tongued tearingstrip b, marked off by scored or weakened lines b' b2 and provided with a notch b4 at the side seam b5. After the sealing-ring B has been formed, as illustrated in Fig. 2, a wide internally-projectingbeadbis formed therein,with its upper edge just below the lower score or weakened line b2 of the tongued tearing-strip. The next step is to stamp or compress the walls of this bead b together, thus forming an internal fold bl in the stock of the seamingring, as illustrated in Fig. 4, which at the next step, as illustrated in Fig. 5, is turned IOO into an upright-position, thus forming an-u-pyright internal fold and producing a rigid shoulder bg, between which and the external shoulder a on the jarA a packing-ring a may be firmly Vcompressed and held by turning r forming the inwardly-projecting flange b9 at the lower edge of the seaming-ring. Before the sheet-metal seaming-rin gis thus hermetically-sealed and secured to the jar, as illustratcd in Fig. 6, the seamingring is furnished with a roll, ange, or shoulder b1 at its upper edge to adapt the sheet-metal cover D to be hermetically sealed and-secured there# to bya vacuum or atmospheric-'pressure seal, and also to be mechanically sealed, s'eamed, `or'locked thereto. The sheet-metalcover D has'an annular-groove or channel d formed -`byva'nd between its inner and outer4` flanges d' @Pfandv which channel receives thek packing d3,which in the sealing'of the cover'to the vseaming-ring iscompressed between the cover andthe smooth shoulder bw attheup-` per Vedge f'the seaming-ri-ngproducd by the' roll formed thereon. This'fenables the cover to `behermetically sealed, locked, and `securedto the jar and its seaming-ringf by'a vacuumor atm ospheric-pressure seal by simply placing therjarafter it has been filled in the receiver of an air-pump, with its cover llooselyin place thereon, as illustrated in Fig.` 7, kso that the air lwill be exhausted frompthe jar andtherrsuddenly restoringair or other pressureL to they receiver, and thus causing lthe cover to be forced home upon the -seam' ing-ring bya straight ldownward movement,` and thereby compressing'thepackingr-ing d3 and sealing the jar.

'llop'reve'nt the contents of the filled jar from coming in contact with the 4sheet-metal seaming-ring or fits cover D, protecting-v receiver of the air-pump the cover D is me` chanica-lly sealed, locked,'secured, or seamed to the seaming-ring B, this being preferably done by simply turn-'ing or crimping the lower edgedof the outer flange d of the cover D under the shoulder bw, formed by the flange,

turn,- or roll-at the upper edge of the seamingriug, thus-additionally compressingaud holding compressed the packing cl3 between the cover-and the seaming-ring.

To open the jar, the tongued tearing-strip b is' wound in the usual manner around thekey F, provided for this purpose,thus 1ea'vi'ng the `upright fold b7','with its smooth'fupper edge or surface, p'rojecting'above the lower torn yedge produced bythe removal of the tearing-strip,l

smooth beveled upper edge produced by the `fold in the stock, and as the slip-cover flange b has a slight inward inclination to its point of union with the cover D, produced' by the `actionof the 'crimping-tools in turning the flange d4 inward, thes'lip-cover is thus given a very tightwedging fit -on the steaming-ring,

so that the 'jar maybe closed 'practically airtight after it has once been opened.

As the internal upright fold has a curved or semitubular form in cross-section, it gives great strength and stiffness to the seamingring iat ythe point where'the `tearing-strip is detached therefrom, so thatl the tearing-strip will separate easily and uniformlyand with certainty when itv iswound upon-the key in opening theV jar.

4 I-claim-Y vl. Thev co'mbined-slip-cover and vacuum- -seali'ng key-opening jar, consisting in lthe combination with -a glass or earthenware jar A having an external shoulder a at its neck, of

a sheetmetal seamingring B, "having a tongued tearing-strip b, land an internal upright fold b7 projecting above the lowerscore `ofthe tearing-strip, and providedwith an inturned flange b9'at its lower edge securing the same to the jar,a sheet-metal cover D having -inner and outer vflanges d d2, and an annular channel cl between, furnished with Aa pack- 'ing-ring d3, said `seaming-ring having'at its upper edge a flan-ge, turn or roll mechanically secured or united to said cover, and said seaming-ringhavi-ng a slip-cover'flange por- Ioo IIO

tion b projecting above the upper score of the tearing-strip and adapted-'to tightly i-t, when thev tearing-strip is removed, said upright fold b7 of the seaming-rin-g,substantially as specified.

2. The combination with a `jar having an external shoulder at its neck, with a sheetmetal seaming-ring furnished with a tongued tearing-strip, `and Vprovided with an internal vupright fold having a smooth upper edge projecting above the lower score of the tearingstrip, said seaming-ring having a Iiange at its lower edgesecuring the same to the jar, and a slip-cover ange portion b projecting above the upper score of the tearing-strip, and a sheet-metal cover having a packing-ring and mechanically seamed or secured to said upper portion bu of the seaming-ring, and forming, when the tearing-strip is removed, a slip cover tting said upright fold 67 vof the seaming-ring, substantially as specified.

IZO

43. The combination with a jar having an 'external shoulder at its neck, of aseamingringfurnished with a tongued tearing-strip and an internal shoulder, and provided With an inturned flange at its lower edge securing the same to the jar, and With a flange or roll l f at its upper edge, of a sheet-metal cover having an annulargroov and a packing-ring therein to adapt the same to be seamed and 1Q secured to the seeming-ring by a vacu um or 1 atmospheric-pressure seal, substantially as specified. y 4. The combination with a jar having an N ,l external shoulder at its neck, of a seaming- .r 11,5 ring furnished With a tongued tearing-strip and an internal shoulder, and provided With an inturned flange at its lower edge securing the `same tothe jar, and With a flange or roll at its upper edge, of a sheet-metal cover having an annular groove and a packing-ring therein to adapt the same to be seamed and f secured to the scanning-ring by a vacuum or atmospheric-pressure seal, said cover having f its outer flange, mechanically seamed or `l z5 crimpedto the flange or roll on the seamingring, substantially as specified.

f 5.`The combination with a jar having an external shoulder at its neck, of a seamingring furnished With a tongued `tearing-strip and an internalshoulder, and provided with l, an inturned `flange at its lower edge securing "the sameto the jar, and `with a flange or roll at its upper edge, of `a sheet-metal cover hav- ,y fingan annular groove `and a packing-ring .35,therein to adapt the same to be seamed and l l secured to the seeming-ring by a vacuum or atmospheric-pressure seal, said cover having `its outer flange `mechanically seamed or i "crimped to the flange or roll on the seamingy 4o ring, and said seaming-ring having a slipcover flange portion b above the upper score `of the tearing-strip and forming With the cover, when the tearing-strip is removed, a

. slip-cover fitting the portion of the seemingring attached to the jar, substantially as specified.

1 6. The combination with a glass or earthenf Ware jar, of a cover and seaming-ring furl i nished With a tongued tearing-strip for open- 5o ing the jar, said scanning-ring being hermetically sealed and secured to the jar, and said cover being hermetically sealed and secured to the seeming-ring, substantially as specified. 7. The combination with a jar having an external shoulderat its neck or top, of a sheetmetal ring having an intern al shoulder and sef 1 cured to said jar, and provided with a tougued g tearing-strip above its internal shoulder, suby l stantially as specified.

, 6o 8. The combination with a jar having an l external shoulder at its neck or top,of a sheetmetal ring having an internal shoulder and secured to said jar, provided with a tongued tearing-strip above its internal shoulder and o5 a packing-ring inserted between said seam- H ing-ring and jar, substantially as specified.

9. The combination with a jar having an external shoulderat its neck or top, of a sheetmetal ring having an internal shoulder and secured to said jar, provided with a tongued tearing-strip above its internal shoulder said sheet-metal ring having at its lower edge an inturned flange locking the same to the jar, substantially as specified.

10. The combination With a jar having an external shoulder at its neck or top, of a sheetmetal ring having an internal shoulder and secured to said jar, provided With a tongued tearing strip above its internal shoulder and a packing-ring inserted between said 8c seaming-ring and jar, said sheet-metal ring having at its lower edge an inturned flange locking the same to the jar, substantially as specified.

l1. The combination with a jar having an external shoulder at its neck or top, of a sheetmetal ring having an internal shoulder and secured to said jar, and provided with a tongued tearing-strip, said sheet-metal ring having a flange or roll at its upper edge, and a sheet-metal cover having inner and outer flanges embracing said flange or roll on the upper edge of the rin g, substantially as specified.

l2. The combination with a jar having an external shoulder at its neck or top, of asheetmetal ring having an internal shoulder and secured to said jar, and provided With a tongued tearing-strip, said sheet-metal ring having a flange or roll at its upper edge, and a sheet-metal cover having inner and outer flanges embracing said flange or roll on the upper edge of the ring, and the outer flange on the cover being turned or crimped under the flange or roll at the upper edge of the seaming-ring, substantially as specified.

13. The combination With a jar having an external shoulder at its neck or top, of asheetmetal ring having an internal shoulder and secured to said jar, provided with a tcngued tearing-strip said sheet-metal ring having at its lower edge an inturned flange locking the same to the jar, said sheet-metal ring having a flange or roll at its upper edge, and a sheetmetal cover having inner and outer flanges embracing said flange or roll on the upper edge of the ring, substantially as specified.

14. The combination With a-jar having an external shoulder at its neck or top, of a sheetmetal ring having an internal shoulder and secured to said jar, provided with a tcngued tearing-strip,a packing-ring inserted between said seaming-ring and jar, said sheet-metal ring having a flange or roll at its upperedge, a sheet-metal cover having inner and outer flanges embracing said flange or roll on the upper edge of the ring, and the outer flange on the cover being turned or crimped under the flange or roll at the upper edge of the seaming-ring, substantially as specified.

EDWIN NORTON.

Witnesses:

H. M. MUNDAY, L. E. CURTIS.

IOO

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